EP2547515A1 - Mécanisme de régulation de l'oxygène pour un joint de boisson - Google Patents

Mécanisme de régulation de l'oxygène pour un joint de boisson

Info

Publication number
EP2547515A1
EP2547515A1 EP11757094A EP11757094A EP2547515A1 EP 2547515 A1 EP2547515 A1 EP 2547515A1 EP 11757094 A EP11757094 A EP 11757094A EP 11757094 A EP11757094 A EP 11757094A EP 2547515 A1 EP2547515 A1 EP 2547515A1
Authority
EP
European Patent Office
Prior art keywords
film
gasket
oxygen
layer
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11757094A
Other languages
German (de)
English (en)
Other versions
EP2547515A4 (fr
Inventor
Timothy P. Keller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VINPERFECT Inc
Original Assignee
VINPERFECT Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by VINPERFECT Inc filed Critical VINPERFECT Inc
Publication of EP2547515A1 publication Critical patent/EP2547515A1/fr
Publication of EP2547515A4 publication Critical patent/EP2547515A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/04—Discs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness

Definitions

  • This application relates generally to bottle enclosures, and more specifically to gaskets for regulating oxygen transmission through a gasket and bottle enclosure.
  • cork as a wine bottle sealing medium, however, suffers from several deficiencies. For one thing, the variability in natural cork bark, from which cork is made, results in variability in the rate of oxidation of wines in different bottles and consequently, variability in taste across bottles.
  • cork contains a chemical known as 2,4,6 tricholoroanisole (TCA), a product of fungi that live in natural cork.
  • TCA 2,4,6 tricholoroanisole
  • cork suffers from structural defects that include crumbling, breaking, and seepage, and requires the use of a tool (e.g., corkscrew) for removal from the wine bottle. Moreover, it is difficult to reseal a cork-sealed wine bottle without the use of additional devices.
  • a tool e.g., corkscrew
  • the screwcap uses a gasket that contains high-barrier materials; most commonly a layer of tin foil or Poly-vinyl-di-chloride (commonly known as PVDC or Saran).
  • high-barrier materials most commonly a layer of tin foil or Poly-vinyl-di-chloride (commonly known as PVDC or Saran).
  • PVDC Poly-vinyl-di-chloride
  • Saran Poly-vinyl-di-chloride
  • a closure is desired that would admit moderate amounts of oxygen into the container, but do so in a predictable and selectable, or programmable, way.
  • the amount of oxygen desired for a wine is dependent upon the style of that wine and its needs for oxygen in maturation, but for the theoretical average wine, it can be said that the wine will be in threat of developing oxidized characters by the time 5ppm of oxygen has entered the bottle. It is then up to the winemaker to decide how long of a time period they would prefer for that bottle to absorb 5ppm of oxygen.
  • the desired amount of oxygen should be allowed into the container over a period of time ranging between 6 months to 8 years.
  • a deciding factor in choosing the appropriate oxygen rate is the wine style and the winemaker' s intention for how that wine develops in the bottle.
  • 5ppm of oxygen over 6 months to 8 years in a standard 750 ml wine bottle equates to a transmission rate of approximately 1.5 ml/m 2 /day to 20 ml/m 2 /day.
  • SCREWCAP CLOSURE WITH DIFFUSIVE MEMBRANE LINER filed March 12, 2009, the entire contents of which are incorporated herein by reference, describes closure and liner devices for regulating the oxygen through the perforation of liner layers to expose different amounts of surface area in subsequent layers, or to force the oxygen through a tortuous path. While these devices are functional, they may have a mild level of variance due to the delicate nature of aluminum and tin foils used for the closure housings can make them susceptible to physical defects which may significantly affect the performance of the liners. In addition, the perforations of such closure housings generally requires a delicate handling and
  • a gasket for a bottle closure that regulates the diffusion of oxygen into the bottle.
  • the gasket includes a flexible substrate that is at least semi-permeable to oxygen and a barrier film that is less permeable to oxygen than the substrate layer, where the combined structure of the flexible substrate and the film disposed thereon has a light transmittance of between 0.5% and 10%.
  • the structure may further be attached or disposed with an elastomeric liner layer.
  • the substrate includes a polymer layer and the film comprises a metal or non-metal film, where the film may be vapor deposited or sputtered onto the substrate.
  • the film may be deposited on the substrate to allow oxygen to diffuse
  • the exemplary gasket or liner may further include a film that is perforated to create areas of differing oxygen transmission through the substrate and film structure.
  • the film may be deposited in a manner to create windows or areas of higher and lower oxygen transmission.
  • a system for perforating a film layer for use in a beverage gasket includes a processor having a memory and a perforator, wherein the processor is operable to control the perforator to perforate a material having layer formed on a substrate layer in response to an optical density of the material. The perforation may be in response to a measured light transmission or optical density of the material to achieve a desired oxygen transmission rate.
  • FIG. 1 illustrates a cross- sectional view of an exemplary bottle cap enclosure and liner disposed therewith.
  • FIG. 2 illustrates an exploded view of an exemplary liner or gasket for a bottle cap enclosure
  • FIG. 3 illustrates an exemplary liner roll for manufacturing liners for a bottle clap enclosure
  • FIG. 4 illustrates a table of exemplary film materials and exemplary oxygen transmission rates and light transmission rates
  • FIGs. 5 and 6 illustrate schematically exemplary apparatuses for manufacturing liners for use with bottle cap enclosures
  • FIG. 7 illustrates a cross- sectional view of various exemplary perforated liners or gaskets for a bottle cap enclosure.
  • FIG. 8 illustrates an exemplary computing system.
  • a closure having a film is used to regulate the transmission of oxygen into the closure.
  • the film is processed through control of the optical density (or transparency) of the film.
  • the film comprises a metalized film.
  • Metal of the metalized film can be applied to a substrate and/or the closure in a variety of suitable ways, including vapor deposition.
  • the exemplary bottle closure may provide a closure that is relatively simple to manufacture and provides a discreet and selectable amount of oxygen permeation to the bottle contents.
  • Metalized films have been developed to replace metal foils for a number of packaging products, such as potato chip bags and candy bars. Such metal foils are generally applied with the intent of excluding the maximum amount of oxygen practically possible. The benefit of these films is that they approach the oxygen-barrier properties of a foil, but are easier to use in manufacturing and can be made at a significantly lesser cost.
  • the present art for these films fall into two categories: replacement of foils for food packaging where there is very little oxygen let through, or the shielding of materials from light penetration, such as use in reflective exterior windows, or welding shields. In the latter application, oxygen transmission is generally not a relevant metric.
  • FIG. 1 illustrates a cross- sectional view of an exemplary bottle cap enclosure 100 and liner 104 disposed therewith according to one example.
  • liner 104 may comprise a layer of metalized film with an optical density in the relevant range that allows the metalized film to perform (e.g., allow oxygen transmission) within a desired range for the bottle contents.
  • the below descriptions will refer to a metalized film, but the same or similar structures can be used and produced with other non-metallic, oxygen- regulating materials as mentioned above.
  • closure 100 may be constructed from metal such as aluminum or steel that are impermeable to atmospheric air, and contains one or more openings, or ventilation holes, through which atmospheric air can pass to reach liner 104.
  • closure 100 is a screw cap closure for a wine bottle. It should be noted, however, that other embodiments of the present invention may include liners that are fitted within bottle cap closures other than screw cap closures and bottle cap closures for bottles other than wine bottles.
  • liner 104 may comprise two or more layers that include at least one semi-permeable layer and at least one impermeable layer.
  • Semi-permeable layers may be constructed from materials that are semi-permeable to oxygen such that oxygen can diffuse through the semi-permeable layers.
  • An example of a material that is semi-permeable to oxygen is polyester.
  • Material for semi-permeable layers may also be slightly elastic so that the semi-permeable layers may be compressed in the areas where the liner is sandwiched between the rim of the bottle below and the screw cap closure above, and further able to stretch when being forced on and/or into the opening of the bottle. This elasticity may fill any irregularities in the sealing surface and ensure a tight seal for the bottle.
  • closure 100 and liner 104 are described, for example, in U.S. patent application no. 12/403,082 titled VENTED SCREWCAP CLOSURE WITH DIFFUSIVE MEMBRANE LINER, filed March 12, 2009, the entire contents of which are incorporated herein by reference.
  • FIG. 2 illustrates exploded views of two exemplary liners 104e and 104c in greater detail (which are also shown in FIG. 7 and discussed below).
  • Liner 104e includes a substrate film, substrate 106, which may include one or more layers that are semi-permeable to oxygen.
  • Exemplary barrier layers can be adhered to an elastomeric gasket layer 110 with the barrier layers oriented towards the bottle lip and the sealing surface of the container.
  • liner 104e includes a metallization layer 108, which may be formed on substrate 106 through vapor deposition, sputtering, electrochemical deposition, or other suitable processes for fixing metallization layer 108 to substrate 106.
  • metallization layer 108 may form a continuous layer on substrate 106; however, in other examples, holes or windows may be present in metallization layer 108 as a result of deposition (e.g., sputtering or a resist pattern) or from post etching or perforating.
  • metallization layer 108 may include non-metallic layers as described herein.
  • Exemplary liner 140c is similar to 104e, however, in this example, metallization layer 108 is disposed between two substrate layers 106.
  • Substrate layers 106 may include the same or different materials, thicknesses, and so on.
  • the degree of light transmission to create a barrier within desired oxygen transmission specifications generally desired for winemaking is between 20% and 0.5%.
  • This degree of metallization will vary with the material due to the nature of the deposition of the metal during the metallization process but is still higher than the current art which aims for very little transmission of oxygen.
  • FIG. 3 illustrates an example where of the structure with different sized windows across a roll. At one optical density 120 there are "windows" 112, where oxygen can move through the barrier film at a rate that is
  • M 0TR is the base polymer's Oxygen Transmission Rate ("OTR")
  • L TX is the % of light transmission (a similar measure of optical density) through the film
  • F OTR is the resulting oxygen permeability of the manufactured film.
  • This formula allows a closure manufacturer to spec a film and/or substrate that will provide the desired performance characteristics for a given beverage, container size, substrate film properties, desired oxygen transmission level, and so on.
  • FIG. 4 relates the application of this formula to a table of several known oxygen barrier films and the level of metallization required to bring them to a similar OTR Level.
  • some films are not acceptable because they do not allow adequate oxygen through by themselves.
  • Other films require such a high level amount of metallization that very small variances in the amount of metallization will produce large changes in OTR.
  • a base polymer that has moderate oxygen permeability can be metalized to a moderate extent to produce the desired result.
  • OPET as included in the table of FIG. 4
  • a small change in the degree of metallization will not produce a large change in the film' s OTR - as it would if a material such as LDPE were used.
  • this degree of consistency is important.
  • the lack of consistency and the extended life expectation of products such as wine is generally the barrier to achieving a high-performance closure. This degree of consistency for products such as wine would be difficult if one were trying to regulate OTR through material thickness or metallization percentage alone.
  • FIG. 3 This is expected due to the nature of the film extrusion process as well as the metalizing process which is subject to variations at the beginning or end of a run, changes in roll speed, and the random nature of the deposition process itself.
  • optical density can be measured in real-time in a manufacturing environment using optical sensors. For example, using an optical sensor to detect optical density as a roll is fed into the lamination or die cutting system. In contrast, the alternative of measuring oxygen transmission directly requires long-duration, and generally destructive, testing of portions of the metalized film.
  • the metalized film can be perforated to a greater or lesser extent, e.g., by a computer-controlled laser, based on the level of metallization detected in the material at that point.
  • the perforated layers (e.g., 106 and 108) can be laminated over a medium-barrier layer 106b to create a
  • F OTR The oxygen transmission rate of the high barrier layer
  • MB OTR The oxygen transmission rate of the medium barrier layer
  • FIG. 5 illustrates schematically an exemplary apparatus for manufacturing liners for use with bottle cap enclosures.
  • a roll of metalized film 210 is fed through an optical detector 230 and through a perforator apparatus 220.
  • the metalized film may include one or more substrate layers having at least one surface thereof metalized. For example, via a vapor deposition process a desired amount of metal on the substrate may have been achieved.
  • the metalized film 210 passes through or by an optical detector, which may include a light or laser source 232 and a detector 230 for detecting optical transmission properties of the metalized film 210 as it passes.
  • optical detector 230 may operate with a light source having a known average wavelength (e.g., 550 nm), a laser tuned to a particular wavelength, or other means for passing light through the metalized film 210 to the optical detector 230.
  • Optical detector 230 may monitor the optical transmission properties of metalized film 210 in predetermined intervals or continuously. It may also be placed at representative locations or across the width of the web in a continuous array.
  • the detected optical transmission properties may be communicated to processor 222 and/or perforator apparatus 220 along with information from a web speed sensor 234 for use in determining the degree, if any, that the film should be perforated by perforator apparatus 220.
  • apparatus may include a laser or a hot needle array to create perforations through the entire film or the metallization layer may be selectively removed or thinned by use of select laser wavelengths, mechanical or chemical etching, or similar process). The amount of selective removal or thinning may be in response to the optical characteristics determined by optical detector 230.
  • metalized film 210 may be again rolled or stored for further manufacturing. In other examples, metalized film 210 may further pass directly to an apparatus for forming enclosure liners and/or to bottling apparatus to be included as part of a finished bottle enclosure.
  • FIG. 6 illustrates schematically another application of optical transmission based correction of variance in the manufacturing process.
  • the light is transmitted through a fully assembled and die cut liner. Since the other components of the liner are translucent or transparent, differences in optical density at this stage will still be predictive of OTR.
  • the light source 240 may be pulsed like a strobe to maximize intensity of the transmitted light.
  • the light readings from sensor 230 may be transmitted to a computer processor 222 which controls the operation of a mechanical sorting grid 260.
  • the sorting function will serve to use any variance within the product itself as an opportunity to create multiple levels of oxygen transmission, and allow the product to be sorted into different performance levels.
  • FIG. 7 illustrates several cross-sectional views of an exemplary perforated liner 104 for a bottle cap enclosure, one embodiment 104a which has been perforated, for example, by the systems of FIGs. 5 or 6.
  • a series of windows or openings 105a have been formed in metalized layers 108 by perforating through both layers.
  • the openings 105a are formed completely through to the substrate 106b, whereas in embodiment 104b the windows are formed only through metal layer 108.
  • This difference in structure can be accomplished with short- wavelength lasers such as nd-YAG, fiber lasers, and similar.
  • the spacing between openings 105a and 105b may vary, depending, for example, on detected optical transmission properties and desired oxygen transmission rates. Those rates may be varied by altering either the size or the number of windows, or a combination of both.
  • embodiment 104a there are two layers of substrate 106, 106b - largely for the purpose of encapsulating the metalized layer and the perforations therein. This is necessary to protect the metalized layer from contact with the contents of the bottle, to guard against accidental over-penetration by the laser and to provide a more robust seal with the bottle.
  • the metalized film is laminated to the elastomer 110 of the gasket directly. Allowing for a simpler structure and lower cost.
  • a liner such as that detailed by 104c a range of products of different oxygen transmission rates can be created by programming in a minimum amount of perforations to increase the overall permeability. This makes fine tuning and customization of oxygen rates possible while starting from one common set of base materials.
  • FIG. 8 depicts computing system 900 with a number of components that may be used to perform the above-described processes.
  • computing system 900 may be part of or in communication with one or more of a metallization system, perforator system, optical detector system, closure apparatus, and so on.
  • the main system 902 includes a motherboard 904 having an input/output ("I/O") section 906, one or more central processing units (“CPU”) 908, and a memory section 910, which may have a flash memory card 912 related to it.
  • the I/O section 906 is connected to a display 924, a keyboard 914, a disk storage unit 916, and a media drive unit 918.
  • the media drive unit 918 can read/write a computer-readable medium 920, which can contain programs 922 and/or data.
  • a computer-readable medium can be used to store (e.g., tangibly embody) one or more computer programs for performing any one of the above- described processes by means of a computer.
  • the computer program may be written, for example, in a general-purpose programming language (e.g., Pascal, C, C++) or some specialized application- specific language.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)
  • Wrappers (AREA)

Abstract

La présente invention concerne un joint pour fermeture de bouteille qui régule la diffusion de l'oxygène dans la bouteille. Dans un exemple, le joint comprend un support flexible perméable à l'oxygène et un film barrière qui est moins perméable à l'oxygène que la couche de support, la structure combinée présentant une transmittance comprise entre 0,5 % et 10 %. Dans certains exemples, le support comprend une couche en polymère et le film comprend un film métallique ou un film non métallique, le film pouvant être déposé par évaporation sous vide ou pulvérisé sur le support. La couche de film métallisé peut être déposée sur le support pour mettre à l'oxygène de se diffuser à travers à une vitesse de 1,5 cc/m2/jour à 20 cc/m2/jour, ou 5 mg d'oxygène pour se diffuser à travers pendant une période de 6 mois à 8 ans. Le joint ou joint de capuchon donné à titre d'exemple peut, en outre, comprendre un film qui est perforé pour créer des zones de transmission d'oxygène différentes.
EP11757094.5A 2010-03-19 2011-03-18 Mécanisme de régulation de l'oxygène pour un joint de boisson Withdrawn EP2547515A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31551010P 2010-03-19 2010-03-19
PCT/US2011/029075 WO2011116338A1 (fr) 2010-03-19 2011-03-18 Mécanisme de régulation de l'oxygène pour un joint de boisson

Publications (2)

Publication Number Publication Date
EP2547515A1 true EP2547515A1 (fr) 2013-01-23
EP2547515A4 EP2547515A4 (fr) 2015-12-09

Family

ID=44649629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11757094.5A Withdrawn EP2547515A4 (fr) 2010-03-19 2011-03-18 Mécanisme de régulation de l'oxygène pour un joint de boisson

Country Status (7)

Country Link
US (1) US20120067842A1 (fr)
EP (1) EP2547515A4 (fr)
AR (1) AR080691A1 (fr)
AU (1) AU2011227037B2 (fr)
CL (1) CL2012002573A1 (fr)
NZ (1) NZ603085A (fr)
WO (1) WO2011116338A1 (fr)

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Also Published As

Publication number Publication date
WO2011116338A1 (fr) 2011-09-22
NZ603085A (en) 2014-08-29
AU2011227037B2 (en) 2015-08-13
US20120067842A1 (en) 2012-03-22
AR080691A1 (es) 2012-05-02
EP2547515A4 (fr) 2015-12-09
CL2012002573A1 (es) 2013-08-30
AU2011227037A1 (en) 2012-11-08

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